1,2,4,5,8,8a-hexahydro-6-methyl-4-oxo-2-((5,6,7-trimethoxy-1H-indol-2-yl)carbonyl)-cyclopropa(c)pyrrolo(3,2-e)indole-7-carboxylic acid methyl ester 153925-97-4 Du-8 Du-86